The leading supplier of cutting edge technology

Zygo GPI Series

Over their > 15 year existence, the GPI series of interferometers have earned the confidence of thousands of users worldwide to provide reliable, accurate, metrology. Recent advances in ZYGO's interferometric capabilities has resulted in an upgrade of the former GPI phase measuring products to the new VeriFire Series of interferometer systems. The GPI Series of interferometers are now offered with either visual or carrier fringe measurement methods. (All ZYGO phase measuring interferometers are now part of the VeriFire Series of products.)

Model	Core Technology	Core Technology	Zoom	Focus	Camera Resolution
LC	Visual Fringe	Point Source	N/A	N/A	512 x 492 pixels
ST	Visual Fringe	Point Source	Motorised 1-6X	Motorised	768 x 494 pixels
FlashPhase	Carrier Fringe	Point Source	Motorised 1-6X	Motorised	640 x 480 pixels

GPI LC- The GPI LC is the foundation of the GPI series. It provides visual fringe analysis for use in the metrology of flat surfaces.

GPI ST - The GPI ST provides motorized zoom and focus with visual fringe viewing.

GPI FlashPhase - The GPI FlashPhase has very low sensitivity to vibration. The system utilizes carrier fringe phase-acquisition technology by acquiring surface information from a single frame of data.